package day02;

public class DoubleDemo {
    public static void main(String[] args) {
        double a1 = 3.14;
        float a2 = 3.14f;
        double b = 3.0;
        double c = 2.9;
        System.out.println(b-c);
        double e = 6.0;
        double f = 1.9;
        System.out.println(e-f);
        double g = 6.0;
        double h = 4.9;
        System.out.println(g-h);

    }
}
